The hierarchy output mode is to group entries so the existing columns
won't fit to the new output. Treat all sort keys as a single column and
separate headers by "/".
# Overhead Command / Shared Object
# ........... ................................
#
15.11% swapper
14.97% [kernel.vmlinux]
0.09% [libahci]
0.05% [iwlwifi]
...
Acked-by: Pekka Enberg <penb...@kernel.org>
Signed-off-by: Namhyung Kim <namhy...@kernel.org>
---
tools/perf/ui/stdio/hist.c | 107 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 107 insertions(+)
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index b58f718a6afc..4bdab3cf1b6c 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -505,6 +505,108 @@ static int hist_entry__fprintf(struct hist_entry *he,
size_t size,
return ret;
}
+static int print_hierarchy_indent(const char *sep, int nr_sort,
+ const char *line, FILE *fp)
+{
+ if (sep != NULL || nr_sort < 1)
+ return 0;
+
+ return fprintf(fp, "%-.*s", (nr_sort - 1) * HIERARCHY_INDENT, line);
+}
+
+static int print_hierarchy_header(struct hists *hists, struct perf_hpp *hpp,
+ const char *sep, FILE *fp)
+{
+ bool first = true;
+ int nr_sort;
+ unsigned width = 0;
+ unsigned header_width = 0;
+ struct perf_hpp_fmt *fmt;
+ const char spaces[] = " "
+ " "
+ " ";
+ const char dots[] = "................................................."
+ "....................................................................."
+ ".....................................................................";
+
+ nr_sort = perf_hpp__count_sort_keys();
+
+ /* preserve max indent depth for column headers */
+ print_hierarchy_indent(sep, nr_sort, spaces, fp);
+
+ hists__for_each_format(hists, fmt) {
+ if (perf_hpp__is_sort_entry(fmt) ||
perf_hpp__is_dynamic_entry(fmt))
+ break;
+
+ if (!first)
+ fprintf(fp, "%s", sep ?: " ");
+ else
+ first = false;
+
+ fmt->header(fmt, hpp, hists_to_evsel(hists));
+ fprintf(fp, "%s", hpp->buf);
+ }
+
+ /* combine sort headers with ' / ' */
+ first = true;
+ hists__for_each_format(hists, fmt) {
+ if (!perf_hpp__is_sort_entry(fmt) &&
!perf_hpp__is_dynamic_entry(fmt))
+ continue;
+
+ if (!first)
+ header_width += fprintf(fp, " / ");
+ else {
+ header_width += fprintf(fp, "%s", sep ?: " ");
+ first = false;
+ }
+
+ fmt->header(fmt, hpp, hists_to_evsel(hists));
+ rtrim(hpp->buf);
+
+ header_width += fprintf(fp, "%s", hpp->buf);
+ }
+
+ /* preserve max indent depth for combined sort headers */
+ print_hierarchy_indent(sep, nr_sort, spaces, fp);
+
+ fprintf(fp, "\n# ");
+
+ /* preserve max indent depth for initial dots */
+ print_hierarchy_indent(sep, nr_sort, dots, fp);
+
+ first = true;
+ hists__for_each_format(hists, fmt) {
+ if (perf_hpp__is_sort_entry(fmt) ||
perf_hpp__is_dynamic_entry(fmt))
+ break;
+
+ if (!first)
+ fprintf(fp, "%s", sep ?: " ");
+ else
+ first = false;
+
+ width = fmt->width(fmt, hpp, hists_to_evsel(hists));
+ fprintf(fp, "%.*s", width, dots);
+ }
+
+ hists__for_each_format(hists, fmt) {
+ if (!perf_hpp__is_sort_entry(fmt) &&
!perf_hpp__is_dynamic_entry(fmt))
+ continue;
+
+ width = fmt->width(fmt, hpp, hists_to_evsel(hists));
+ if (width > header_width)
+ header_width = width;
+ }
+
+ fprintf(fp, "%s%-.*s", sep ?: " ", header_width, dots);
+
+ /* preserve max indent depth for dots under sort headers */
+ print_hierarchy_indent(sep, nr_sort, dots, fp);
+
+ fprintf(fp, "\n#\n");
+
+ return 2;
+}
+
size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
int max_cols, float min_pcnt, FILE *fp)
{
@@ -536,6 +638,11 @@ size_t hists__fprintf(struct hists *hists, bool
show_header, int max_rows,
fprintf(fp, "# ");
+ if (symbol_conf.report_hierarchy) {
+ nr_rows += print_hierarchy_header(hists, &dummy_hpp, sep, fp);
+ goto print_entries;
+ }
+
hists__for_each_format(hists, fmt) {
if (perf_hpp__should_skip(fmt, hists))
continue;
--
2.7.0
